What are the exact definitions to the following words?

Great Wall
Han Dynasty
Immortal
Industry
Isolated
Laborers
Legalism
Linked
Mandate of Heaven
Military
North China Plain
Oases
Occurs
Oracle bones
Oxygen
Projects
Pursue
Qin Shihuangdi
Region
Released
Revolt
Sensor
Series
Shang Dynasty
Sibling
Silk Road
Standardized
Suspended
Trade routes
Tributaries
Worship
Yin and yang
Zhou Dynasty

Thanks!